Mitsubishi CCMW120408 UC5105 High-Speed Cast Iron Carbide Insert (10pcs)
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CCMW120408 UC5105
High-Speed Gray Iron Expert | Flat-Top Rigidity | UC5105 Hardened Grade
The Speed Master for Cast Iron
UC5105 Grade (Ultra-Hard CVD): This is Mitsubishi’s hardest grade for **K-class materials**. It features a specialized CVD coating with optimized grain growth control, providing superior resistance to abrasive wear. It is the "Speed Demon" for Gray Cast Iron, allowing you to increase productivity by running at higher surface speeds than standard grades.
CCMW Geometry (Flat-Top Design): Gray cast iron produces fragmented chips that do not require a chipbreaker. The CCMW flat rake face ensures that the cutting edge is backed by the maximum amount of carbide. This "no-chipbreaker" approach prevents crater wear and edge deformation, which are common when using CCMT inserts in high-speed iron applications.
0.8mm Precision Radius: The 08 (1/32") radius is the optimal balance for medium roughing and semi-finishing. It provides high edge strength to survive the initial impact of casting skin while maintaining excellent surface finishes at moderate to high feed rates.
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | CCMW120408 | 12.7 mm | 4.76 mm | 0.80 mm |
| Imperial | CCMW432 | 1/2" | 3/16" | 0.0315" (1/32") |
High-Speed Cutting Parameters
*UC5105 is designed for high-speed stability. It is not recommended for heavy interrupted cuts or low-speed applications.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Gray Cast Iron (FC250/300) | 250 - 600 m/min | 0.15 - 0.45 mm/r | 0.50 - 4.00 mm |
| Hardened Iron / Chilled Iron | 100 - 250 m/min | 0.10 - 0.30 mm/r | 0.50 - 2.50 mm |
Compatible Tool Holders
Engineered for SCLCR/L 12 series Tool Holders and High-Rigidity Boring Bars:
Shop SCLCR 12 HoldersPro-Tip: UC5105 vs. UC5115
UC5105: The Wear Resistance Master. Best for continuous, high-speed turning of Gray Iron where tool life at high RPM is the priority.
UC5115: The Toughness Expert. Switch to UC5115 for Ductile Iron (FCD) or for machining parts with boltholes and gaps, as UC5105 is more brittle and may chip under heavy impact.
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Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.